CN208254890U - The flow measurement gas collecting device synchronous with extraction - Google Patents
The flow measurement gas collecting device synchronous with extraction Download PDFInfo
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- CN208254890U CN208254890U CN201820818823.9U CN201820818823U CN208254890U CN 208254890 U CN208254890 U CN 208254890U CN 201820818823 U CN201820818823 U CN 201820818823U CN 208254890 U CN208254890 U CN 208254890U
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Abstract
The utility model provides a kind of gas collecting device that flow measurement is synchronous with extraction, and in pressure measuring tube (1), total pressure measurement pipe (11) has total pressure measurement interface (111), and static pressure tube (12) has static pressure measurement interface (121)；Gas sample tube (2) has gas collecting interface (21)；Total pressure measurement pipe and gas sample tube are placed windward in measurement space, and static pressure tube is non-to be placed windward；Pressure measuring tube is set side by side with gas sample tube；Alternatively, gas sample tube is built in the pressure measuring tube；Alternatively, pressure measuring tube is built in gas sample tube.Gas sample tube and pressure measuring tube are set in same device by the present apparatus, realize that the sampling of analysis gas extraction is synchronously completed with gas pressure measurement sampling, it improves flow measurement and gas relevance is extracted in gas analysis, guarantee the subsequent accuracy to gas pressure measurement and composition analysis result.
Description
Technical field
The utility model relates to gas analyzing apparatus field, in particular to a kind of flow measurement gas synchronous with extraction is adopted
Acquisition means.
Background technique
Higher and higher with environmental requirement, measuring analysis and detection for industrial exhaust gas is industrial circle ring
The necessary work of guarantor.Such as the measurements such as dust, sulfide, nitride, ammonia ingredient in industrial exhaust gas are analyzed.It removes at present
Outside direct optics or electromagnetic wave on-line measurement, extraction-type measurement is an important means.Extraction-type measurement in no matter
It is inustion or optical measurement analytic approach, requires the gas extraction of tested quantity space through pipeline into analysis instrument.
It is exactly peristaltic pump that utensil is extracted in general important metering in extraction.Peristaltic pump such as can intercept at the bodies in rotary course
Long-pending gas is measured for subsequent analysis component.
But due in tested quantity space gas velocity variation it is big, flow difference is big, what peristaltic pump actually intercepted
Gas data property difference in equal spaces is bigger.This results in the reduction of subsequent measurement data accuracy.Therefore, present
Gas analysis in, be also gradually introduced flow parameter, lift gas analyzes the accuracy of data.
But the acquisition of existing flow parameter, analysis gas device is obtained from gas flowmeter, and gas flowmeter
With oneself independent sampling and measuring device.Analyzing gas device is also to have oneself independent gas extraction arrangement.Sampled measurements
The different location in gas flow duct is respectively arranged with gas extraction arrangement.Due to the complexity of gas in pipelines flowing, lead
The difference of the data on flows of gas flowmeter offer and the gas actual flow of gas analyzing apparatus air suction sampling point is caused, as a result gas
Body analytical equipment measurement data accuracy is low.
Meanwhile existing gas sampling device either single-point sampling or multi-point sampling, it is all to be guaranteed by back flushing gas
Sampling pipe is nonclogging, needs to consume a large amount of gas and the energy.
Utility model content
Purpose of utility model: aiming at the problems existing in the prior art, the utility model provide a kind of flow measurement with
Synchronous gas collecting device is extracted, gas sample tube and pressure measuring tube are set in same device, realizes analysis gas
It extracts sampling to synchronously complete with gas pressure measurement sampling, improves flow measurement and gas relevance is extracted in gas analysis, protect
The subsequent accuracy to gas pressure measurement and composition analysis result is demonstrate,proved, while significantly reducing the cost of equipment, improves and sets
Standby reliability.
Technical solution: the utility model provides a kind of gas collecting device that flow measurement is synchronous with extraction, including pressure
Power measurement pipe and gas sample tube；The pressure measuring tube is made of total pressure measurement pipe and static pressure tube；The total pressure measurement
Pipe has static pressure measurement interface with total pressure measurement interface, the static pressure tube；The gas sample tube has gas collecting to connect
Mouthful；The total pressure measurement pipe is placed windward in measurement space, and the static pressure tube is non-in measurement space to be placed windward；Institute
Pressure measuring tube is stated to be set side by side with the gas sample tube；Alternatively, the gas sample tube is built in the pressure measuring tube
It is interior；Alternatively, the pressure measuring tube is built in the gas sample tube.
Preferably, the open end windward of the pressure measuring tube and the open end windward of the gas sample tube are located at same
Section.Design can guarantee that the gas flow rate that enters in pressure measuring tube and gas sample tube is almost the same in this way, avoid by
The subsequent measurement inaccuracy caused by the difference of pressure measuring tube and gas sample tube internal gas flow velocity.
Preferably, the open end windward of the gas sample tube is located at the inside of the pressure measuring tube.
Further, the flow measurement gas collecting device synchronous with extraction further includes being built in the total pressure to survey
The first deashing component in buret, and/or, the second deashing component being built in the static pressure tube, and/or, it is built in
Third deashing component in the gas sample tube.It is easy to deposition dust in measurement pipe and probe tube, needs periodic cleaning, this
By the way that the deashing component of automatic ash removing is arranged in total pressure measurement pipe, static pressure tube and/or gas sample tube in utility model,
The deashing component can be the deashing stick or rotating vane etc. that can be flowed and move with gas, drive of the deashing component in air-flow
The dust in each measurement pipe and probe tube is removed by displacement down, measurement pipe is carried out without using recoil ash gas clear
Reason reduces operating cost, energy saving.
Preferably, the quantity at least two of the pressure measuring tube and measurement space in matrix form be distributed, each institute
Pressure measuring tube is stated to be connected to by least one pressure measurement branch pipe with pressure measurement general pipeline；The quantity of the gas sample tube with
The quantity of the pressure measuring tube it is identical and in measurement space synchronous layout, each gas sample tube by with the pressure
The equal gas sample branch pipe of measurement branch pipe quantity is connected to gas sample general pipeline；Each gas sample branch pipe has one
A gas collecting interface, alternatively, the gas sample general pipeline has a gas collecting interface.Due to the gas of flowing
Flow, air pressure, the ingredient that body measures the different location in space at one are possible to different, and change frequently, if only one
Measurement point setting pressure measuring tube and gas sample tube in a measurement space, certainly will will lead to pressure measuring tube and gas
The measurement and analysis result inaccuracy of probe tube, so, the different positions that can also be measured in space at one in the utility model
Multiple pressure measuring tubes and gas sample tube are installed, pressure measuring tube and gas sample tube is enabled to measure and collect one
Multiple groups pressure data and gas-composition data in a measurement space, to guarantee result that final arithmetic processor is dealt more
Add and approximates to the facts；Each gas sample tube is connected to by gas sample branch pipe with gas sample general pipeline, can both pass through setting respectively
The gaseous sample that gas collecting interface on each gas sample branch pipe disposably acquires multiple sampled points carries out constituent analysis,
Can be acquired by the gas collecting interface being arranged on gas sample general pipeline multiple sampled points mixed gas sample carry out at
Analysis, it is closer to the truth to be effectively ensured subsequent analysis result.
Working principle and beneficial effect: in the prior art by gas composition analysis and gas pressure detection all same
Sampling is compared in pipeline, and gas sample tube and pressure measuring tube are arranged to two independent pipelines and by the two by the utility model
It focuses in the same device, by interface of pressure measurement setting, (total pressure measures interface setting and surveys in total pressure in pressure measuring tube
In buret, static pressure interface is arranged in static pressure tube), gas collecting interface is arranged in gas sample tube, in this way, pressure is surveyed
Interface is measured when would not be sampled by gas sample tube when measuring the gas pressure in pressure measuring tube in pressure measuring tube
The influence of air-flow ensure that the measurement accuracy of pressure measuring tube, and do not influence the sampling of gas sample tube, also realize analysis gas
Body extracts sampling and synchronously completes with gas pressure measurement sampling, improves flow measurement and gas relevance is extracted in gas analysis,
Guarantee the subsequent accuracy to gas pressure measurement and composition analysis result, while significantly reducing the cost of equipment, improves
The reliability of equipment.
Detailed description of the invention
Fig. 1 is the gas collecting device schematic diagram that flow measurement is synchronous with extraction in embodiment 1；
Fig. 2 is that pressure measuring tube is built in the structural schematic diagram in gas sample tube in embodiment 2；
Fig. 3 is that gas sample tube is built in the structural schematic diagram in pressure measuring tube in embodiment 2；
Fig. 4 is that gas sample tube is built in the structural schematic diagram in pressure measuring tube in embodiment 3；
Fig. 5 is the gas collecting device partial structure diagram that flow measurement is synchronous with extraction in embodiment 4；
Fig. 6 is the gas collecting device partial structure diagram that flow measurement is synchronous with extraction in embodiment 5.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing.
Embodiment 1:
Present embodiments provide for a kind of flow measurement gas collecting devices synchronous with extraction, as shown in Figure 1, mainly by
The size of the stainless steel making of 316 materials is the rectangular pressure measuring tube 1 of 5CM*5CM, gas sample tube 2, the first deashing component 3(excellent
Choosing is using making the deashing stick of irregular movement), it is preferable to use the deashing sticks for doing irregular movement by the second deashing component 4() and the
It is preferable to use the deashing sticks for doing irregular movement by three deashing component 5() composition, pressure measuring tube 1 is by total pressure measurement pipe 11 and static pressure
Measurement pipe 12 forms, and the back-to-back chain intermittent weld of the two is fixed together, and pressure measuring tube 1 and gas sample tube 2 are set side by side, and
The open end windward of pressure measuring tube 1 and the open end windward of gas sample tube 2 are located at same section；The envelope of total pressure measurement pipe 11
There is closed end total pressure to measure interface 111, and the closed end of static pressure tube 12 has static pressure measurement interface 121, gas sample tube 2
Closed end has gas collecting interface 21, and the open end of total pressure measurement pipe 11 and gas sample tube 2 is put windward in measurement space
It sets, the open end of static pressure tube 12 is non-in measurement space to place windward；The setting of first deashing component 3 is in pressure total pressure measurement pipe
In 11, the second deashing component 4 is arranged in static pressure tube 12, and third deashing component 5 is arranged in gas sample tube 2.
It is when being worked using the gas collecting device in present embodiment, the open end of total pressure measurement pipe 11 is gentle
The open end of body probe tube 2 is placed windward, and the open end nature right and wrong of static pressure tube 12 are placed windward at this time, and gas is through complete
Press 11 open end of measurement pipe to enter, when reaching total pressure measurement interface 111, total pressure measurement interface 111 be just able to detect that one it is complete
Press the pressure in measurement pipe 11；Gas enters through the open end of static pressure tube 12, when reaching static pressure measurement interface 121, static pressure
Measurement interface 121 is just able to detect that the pressure in a static pressure tube 12；At the same time, gas collecting interface 21 can also be adopted
Collect the portion gas sample in gas sample tube 2.
Embodiment 2:
Present embodiment is roughly the same with embodiment 1, and the main distinction is, pressure measuring tube 1 and gas sample tube 2 are not
It is to be set side by side, but gas sample tube 2 is built in the total pressure measurement pipe 11 of pressure measuring tube 1, such as Fig. 2；Alternatively, will pressure
The total pressure measurement pipe 11 of power measurement pipe 1 is built in gas sample tube 2, and such as Fig. 3, and the open end windward of the two is located at same section
Face, in this way design can also reach independent two pipelines to guarantee the accurate purpose of measurement result.
In addition to this, present embodiment is identical with embodiment 1, is not repeated herein.
Embodiment 3:
Present embodiment is roughly the same with embodiment 2, and the main distinction is, the position of open end windward of gas sample tube 2
In the end of pressure measuring tube 1, such as Fig. 4, i.e., the open end windward of the two is not in same section.Design can also reach only in this way
Two pipelines are found to guarantee the accurate purpose of measurement result.
In addition to this, present embodiment is identical with embodiment 2, is not repeated herein.
Embodiment 4:
Present embodiment is the further improvement of embodiment 1, mainly thes improvement is that, in embodiment 4, is surveying
Only one pressure measuring tube 1 of interior difference and gas sample tube 2 in quantity space, since the gas of flowing is in a measurement space
Flow, air pressure, the ingredient of different location be possible to different, and change frequently, if a measurement only in measurement space
Point setting pressure measuring tube 1 and gas sample tube 2, certainly will will lead to the measurement and analysis of pressure measuring tube 1 and gas sample tube 2
As a result inaccurate；And present embodiment can be avoided drawbacks described above, specifically:
Such as figure, 5, four 1 Hes of pressure measuring tube of the comprehensive setting of different location in present embodiment in measurement space
Four gas sample tubes 2；Pressure measuring tube 1 is connected to by a pressure measurement branch pipe 6 with pressure measurement general pipeline 7 two-by-two, is being pressed
In power measurement pipe 1, there are total pressure measurement pipe 11 and static pressure tube 12, so also having total pressure measurement branch in pressure measurement branch pipe 6
Pipe 61 and static pressure measurement branch pipe 62 also have total pressure to measure general pipeline 71 and static pressure measurement general pipeline 72, entirely in pressure measurement general pipeline 7
In total pressure measurement general pipeline 71, static pressure measurement interface 121 is arranged in static pressure measurement general pipeline 72 for pressure measurement interface 111 setting；This
Sample designs so that the gas pressure in the measurement space measured is more nearly the average level in entire measurement space, and guarantee is most
Whole measurement result is truer.In aforementioned four gas sample tube 2, gas sample tube 2 passes through a gas sample branch two-by-two
Pipe 8 is connected to gas sample general pipeline 9, and gas collecting interface 21 is connect with gas sample general pipeline 9；It can be designed so that gas in this way
The collected gas of probe tube 2 can more reflect the actual gas state in entire measurement space, can guarantee that subsequent gases are analyzed
Accuracy.
Embodiment 5:
Present embodiment is roughly the same with embodiment 3, and the main distinction is, each gas sample in present embodiment
Branch pipe 8 is respectively coupled a gas collecting interface 21, and such as Fig. 6, design in this way can disposably be analyzed more in measurement space
Then the gas componant of a sampled point carries out comprehensive analysis gas componant, also can effectively ensure that precision of analysis.
In addition to this, present embodiment is identical with embodiment 3, is not repeated herein.
Above embodiment is only to illustrate the technical ideas and features of the present invention, and its object is to allow be familiar with this skill
The people of art can understand the content of the utility model and implement accordingly, not limit the protection scope of the present invention.
It is all according to the spirit of the present invention substantially equivalent transformation that is done or modification, should all cover the protection scope of the utility model it
It is interior.
Claims (5)
1. a kind of flow measurement gas collecting device synchronous with extraction, which is characterized in that including pressure measuring tube (1) and gas
Probe tube (2)；The pressure measuring tube (1) is made of total pressure measurement pipe (11) and static pressure tube (12)；The total pressure measurement
Managing (11) has total pressure measurement interface (111), and the static pressure tube (12) has static pressure measurement interface (121)；The gas
Probe tube (2) has gas collecting interface (21)；The total pressure measurement pipe (11) and the gas sample tube (2) are in measurement space
It inside places windward, the static pressure tube (12) is non-in measurement space to place windward；The pressure measuring tube (1) and the gas
Body probe tube (2) is set side by side；
Alternatively, the gas sample tube (2) is built in the pressure measuring tube (1)；
Alternatively, the pressure measuring tube (1) is built in the gas sample tube (2).
2. the flow measurement according to claim 1 gas collecting device synchronous with extraction, which is characterized in that the pressure
The open end windward of measurement pipe (1) and the open end windward of the gas sample tube (2) are located at same section.
3. the flow measurement according to claim 1 gas collecting device synchronous with extraction, which is characterized in that the gas
The open end windward of probe tube (2) is located at the inside of the pressure measuring tube (1).
4. the flow measurement according to claim 1 gas collecting device synchronous with extraction, which is characterized in that in further including
The first deashing component (3) being placed in the total pressure measurement pipe (11), and/or, it is built in the static pressure tube (12)
Second deashing component (4), and/or, the third deashing component (5) being built in the gas sample tube (2).
5. the flow measurement according to any one of claim 1 to 4 gas collecting device synchronous with extraction, feature exist
It is distributed in, the quantity at least two of the pressure measuring tube (1) and in measurement space in matrix form, each pressure measurement
Pipe (1) is connected to by least one pressure measurement branch pipe (6) with pressure measurement general pipeline (7)；The quantity of the gas sample tube (2)
It is identical as the quantity of the pressure measuring tube (1) and in measurement space synchronous layout, each gas sample tube (2) by with
The equal gas sample branch pipe (8) of pressure measurement branch pipe (6) quantity is connected to gas sample general pipeline (9)；Each gas
Body, which samples branch pipe (8), all has a gas collecting interface (21), alternatively, the gas sample general pipeline (9) has one
The gas collecting interface (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820818823.9U CN208254890U (en) | 2018-05-30 | 2018-05-30 | The flow measurement gas collecting device synchronous with extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820818823.9U CN208254890U (en) | 2018-05-30 | 2018-05-30 | The flow measurement gas collecting device synchronous with extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208254890U true CN208254890U (en) | 2018-12-18 |
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ID=64652346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820818823.9U Active CN208254890U (en) | 2018-05-30 | 2018-05-30 | The flow measurement gas collecting device synchronous with extraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208254890U (en) |
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2018
- 2018-05-30 CN CN201820818823.9U patent/CN208254890U/en active Active
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